Hi, I am quite new to speedrunning, and I really want to pick it up more. I want to record my wii footage with good quality (not with a phone). Any recommendations for ways to record the wii gameplay?

A gv-usb2 capture card.

It does composite and s-video and will give you good quality at an affordable price ($40 USD or so). The driver install is in Japanese because it’s a Japanese product but there are guides online that can aid with that

I always recommend this guide to people who are looking to start streaming in decent quality with minimal expenses https://goo.gl/C78vWx